212390047 has 2 divisors, whose sum is σ = 212390048. Its totient is φ = 212390046.

The previous prime is 212390041. The next prime is 212390063. The reversal of 212390047 is 740093212.

212390047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212390047 - 2¹⁵ = 212357279 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212389997 and 212390024.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212390041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106195023 + 106195024.

It is an arithmetic number, because the mean of its divisors is an integer number (106195024).

Almost surely, 2^212390047 is an apocalyptic number.

212390047 is a deficient number, since it is larger than the sum of its proper divisors (1).

212390047 is an equidigital number, since it uses as much as digits as its factorization.

212390047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 212390047 is about 14573.6078923512. The cubic root of 212390047 is about 596.6386550246.

The spelling of 212390047 in words is "two hundred twelve million, three hundred ninety thousand, forty-seven".